Swarovski Crystal - Black Beads - necklace This 16.5 inch handmade necklace has a 2 inch extension in gunmetal. There are about 10 different colors of Swarovski Crystal separating the 18 mm black rubberized acrylic beads. All finishings are gun metal except for the sterling silver crimp bead. The acrylic beads' finish is soft and velvety and very easy to wear. This necklace will take you allot of places and make you feel good doing it.